LO

Liam O'Brien

1 week ago

Macro Economics 2 model-comparison policy-analysis

I'm analyzing inflation trends in a developing economy for my macroeconomics project and can't decide whether to use the IS-LM model or the AD-AS model. Which one is better for practical policy recommendations and why?

I'm a graduate student working on a research paper about economic stability in Indonesia. I've studied both models but struggle to apply them to real-world data, especially with factors like currency fluctuations and supply constraints. I've tried running regressions with interest rates and inflation data, but the results seem inconsistent. Any tips on selecting the right model or combining insights from both?

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Discussion

DDK

Devendra Dev Koshy
4 days ago

For inflation analysis in developing economies like Indonesia, the AD-AS model is generally more practical because it directly addresses price levels and output interactions, which are key in such contexts. Here's a breakdown:

  • AD-AS Model: It explicitly models aggregate demand and supply, making it easier to visualize how shocks (e.g., oil price changes or fiscal policy) affect inflation and GDP. This is useful for policy analysis, as it shows trade-offs between inflation control and economic growth.
  • IS-LM Model: While good for interest rate and output relationships in closed economies, it often oversimplifies price dynamics, which can be critical in developing regions with volatile inflation.

For your project, start with the AD-AS framework to analyze recent inflation data, and supplement it with IS-LM insights if focusing on monetary policy transmission. Use historical data to plot shifts in AD and AS curves, and consider incorporating supply-side factors common in Indonesia, like agricultural output or trade policies.

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